Time-dependent asymmetries for $ K ^\pm$ $\pi ^\mp$ candidates with invariant-mass values in the interval $5.20 < m < 5.32 {\mathrm{\,GeV\!/}c^2} $: (left) using the OS-tagging decision and (right) the SS-tagging decision. The result of the simultaneous fit is overlaid.

Relation between $\omega_{\rm tag}$ on $\eta_{\rm tag}$ for (top left) SS $\pi $ , (top right) SS $ p $ , (bottom left) SSc and (bottom right) SS $ K $ taggers. The black dots represent the average value of $\omega_{\rm tag}$ in bins of $\eta_{\rm tag}$, as described in the text. The black straight line represents the linear relation between $\omega_{\rm tag}$ and $\eta_{\rm tag}$ obtained from the calibration procedure. The darker and brighter areas are the corresponding 68% and 95% confidence intervals, respectively. The distributions of $\eta_{\rm tag}$ are also reported as histograms with arbitrary normalisations.

Current experimental knowledge on $A_{ C\!P }$ for $ B ^0 \!\rightarrow K ^+ \pi ^- $ and $ B ^0_ s \!\rightarrow \pi ^+ \! K ^- $ decays. For the experimental measurements, the first uncertainties are statistical and the second systematic, whereas for the averages the uncertainties include both contributions.

Values for the calibration parameters of the flavour tagging obtained from the fits. The values of $\hat{\eta}_{\rm OS}$ and $\hat{\eta}_{\rm SS}$ are fixed in the fit to $0.37$ and $0.44$, respectively.